Oil burner



I a o Patented Sept. 8, 1925.

Lyell-1175B SEAT'ES new G-F-FIGE.

MONROE s. OLAWSON, or UP-IERIKIVIONTCLAIR, NEW JERSEY.-

OIL, BURNER.

Application filed. February 28,1924; SeriaLNo. 695,635.

To all whom it may concern:

Be it known that'I, Mormon-S. CLAwsoN,

a citizen oft-he United States,residi ng at Upper Montclair, 1n the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Oil'- Burners, of which the following is a speci-. fication.

This invention relates to furnaces employing liquid fuel and has for itsobject the provision of'a novelburner device so constructed and arranged as to give maximum heat with minimum fuel consumption.

An important and more specific object is vided with a core for permitting van airdraught therethrough whereby an automatic blast effect will be attained.

Yet another object of the invention is the provision of a burner structure in whicheach individual pan unit has its discharge edge serrated to-insure more uniform distribution or flow to the next pan.

An additional objectis the provision of a device of this character which will be simple and inexpensive in manufacture, easy to control and operate, positive in 2L0tlO11,'BffiClQ-Ht and durable in service, and a general -im-- provement in the art.

With the above and other objects and advantages in view, the invention consists in the combination and arrangement of the several parts to be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which Figure 1 is a sectional View taken vertically through a furnace embodying my in vention.

Figure 2 is a top plan View.

Referring more particularly to the drawings, the letter A designates, roughly, the outline or wall of a furnace equipped with my burner structure to be described. Mounted within the furnace structure which itself forms no part of the present invention, is a burner device which includes a plurality of similar pans 10 arranged in 02s cade relation and supported in any desired manner, this detail being immaterial. Each pan-is here represented as being of=elongated trough-like formationand includes ends ll secured' to awsingle combinedback and bottom piece12 whichis of compound curve'd'shape. Theback edge 13 is'higher than the forward edge 14 so that oil fed to each pan will, after reaching a certain level, flowfrom theforward edge into the next successive pan. For insuring uniformity in,

the distribution of flow from one pan to another the forward edge of eachis toothed orserrated, as shown at 15. 1 V

Allof thepans are of the same formation and'each is formed in its bottom with an elongated slot-16 surrounded by upstanding flanges 16 which define a core or flue through which air will pass for supplying the necessary oxygen to supportcombustion of theoil. It is quite true that the oil would probably burn with these cores or flues omitted :but their presence insures a draught of air at the center of flame from each pan so that there will bean automatic blast effect. i

The lowermost pan of t he ser-iesis differ-- ent from the others and is indicated by the This pan has its-front wall.18

numeral 17. extended upwardly instead ofdownwardly, as in thecase of the others and'is'intended to catch whatever oil passes from the lower: most one of the panslO and tocon'duct such excess oil through a pipe 19'into a tank 20 fronrwhich the oil might 'be pumpedyby any suitable means, back to the supply tank 21 which has-its outlet pipe 22 leading into one end of the first pain 10. y r

In some instances, .especial-lyif'there be no pumping mechanism for thus returning the oil, I may find it advisable to provide a float 23 in the tank 20, which float is equipped with a stem 24: adapted to engage a movable contact 25 and force it into engagement with the fixed contact 26. In such an eventboth contacts might be connected in circuit with a source of current 27 and an alarm bell 28 or other signal device which would be energized and give an audible or visible signal as the case may be, in the event that the oil in the overflow tank 20 reaches a certain predetermined level. It is, however, preferable that the feed pipe 22 be equipped with a control Valve 29 which is used .to regulate the quantity of oil fed to the uppermost pan10 and it is a simple matter to' c nt l this 59W in SW1 ar that there will be no surplus oil to accumulate within the lowermost pan 17 all the fuel being preferably consumed before reaching this point.

While it is not imperative,it is a distinct convenience to equip the furnace embodying my burner structure with a movably mounted door normally closing a lighting port 31, the door having an arm 32 equipped with a weight 33 which will normally holdthe door in closed position. Obviousl'y'the door may be pushed inwardly, as shown by the dotted lines in Figure 1, for the purpose of igniting the oil and it is equally apparent that the door will automatically return to closed position when pressure thereagainst is disconstruction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

I claim: I

1; An oil burner structure comprising a plurality of pans arranged in cascade relation and discharging one into another, each pan including end walls, a back and a curved bottom, the bottom having its forward edge lower than the back and downwardly curved.

2.-An oil burner structure comprising a plurality of pans arranged 1n cascade relation and discharging one into another, each pan including end walls, a back and a curved bottom, the bottom having its forward edge lower than the back and downwardly curved, the forward edge being toothed throughout its length. i r

3. An oil burner structure comprising a plurality of similar pans arranged in progressively higher planes with the forward edge of each extending forwardly beyond the rear edge of the one next below, each pan having its forward edge arranged in a plane intermediate the planes of the top edge and quantity of fuel and permit the excess to overflow, the bottom being provided with an elongated slot surrounded by upstanding flanges defining an air admission fine.

5. In a furnace, a burner structure comprising a series of pans arranged in cascade relation with the lower edge of each etxend-r ing beyond the higher edge of the one next below, the uppermost pan being disposed against the inside of one wall of the furnace, said wall having an igniting port above said highest pan, means normally closing said igniting port, means for permitting flow of fuel into said highest pan, said series of pans extending to a point slightly spaced from the opposite wall of the furnace, a collecting trough at said opposite wall and at the bottom of the furnace receiving from th lowermost panof the series, outlet means leading fro-m said collecting trough, and a mass of lumpy refractory material rest- 1ng upon all of the pans and said trough.

6. In a furnace, an oil burner structure comprising a plurality of pans arranged in stepped relation, a lightin port at the uppermost one of the series 0 pans, and a normally gravity-closed door mounted within 7 said port.

In testimony whereof I hereto afiix my signature.

MONROE s. 'CLAWSON, 

